<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <script>
        let arr = [{label:'男',value: 1}, {label:'女',value: 0}]
        let newArr = []
        function f(arr) {
            // for (let i = 0; i < arr.length; i++) {
            //     Object.getOwnPropertyNames(arr[i]).forEach(key => {
            //     if(typeof(arr[i][key])=="string"){
            //         newArr.push((arr[i][key]))
            //     }
            // })
            // }
            // return newArr
            let array = []
            arr.forEach(item => {
                let Array = Object.values(item)
                array.push(Array[0])
            })
            return array
        }
        let arr2 = f(arr);
        console.log(arr2)
        // arr2 = ['男', '女']
    </script>
</body>
</html>